This document is one of ten curriculum guides developed by the Nevada Competency-Based Adult High School Diploma (CBAHSD) Project. This curriculum guide on environmental education is divided into seven topics. The topics included are Human Carrying Capacity (The Ability to Foresee and Forestall), Human Population Growth, The Atmosphere, The Hydrosphere, The Lithosphere, Energy, and Ecosystem Components. Competency statements and performance indicators are provided for each topic area. The performance indicators are designed to be used as pre- and post-tests. Answer keys are also provided. This set of curriculum guides is accompanied by both a teacher's guide and a student handbook. (BM)